Sealing-cap.



No. 793,293. PATENTED JUNE 27, 1905. K. G. GILLETTE.

SEALING GAP.

' APPLICATION FILED 001.10,1904.

s mmullm 6 M, J ii! 1 NITED STATES Patented June 27, 1905.

PATENT OFFICE.

SEALING-(ZAP.

SPECIFICATION forming part of Letters Patent No. 793,293, dated June27,1905.

Application filed October 10,1904. Serial No. 227,815.

To (all whom it ntctg concern:

Be it known that I, KING O. GILLETTE, a citizen ot the United States,and a resident of London, England, have invented a new and usefulImprovement in Scaling-Caps, of which the following is a specification.

This invention consists in certain improvements in sealing-caps forvessels, and has for its object to provide a sealing-cap comprising anouter ring member of sufliciently strong material to securely lock thecap to the vessel and an inner disk member of readily-puncturablematerial.

A further object is to provide a cap of this character in which asealing-ring is permanently clamped between the inner and outer membersof the cap.

In a device of this character a very soft metal such, for instance, asaluminium-may be used for the inner member of the cap and a strongermetalsuch, for instance, as tin-- may be used for the outer member. Themetal of the inner member if made of suflicient strength to clamp thecap to the vessel would thereby be too thick and heavy to permit it tobe readily punctured.

A still further object is to provide a cap of the above character inwhich the inner member is made of non-corrosive material, the shape ofthe member being such that the packing-ring while engaging the mouth ofthe vessel is not exposed to the contents of the vessel, the innermember itself being the only part of the cap so exposed.

In the accompanying drawings, Figure 1 is a view in side elevation ofthe upper portion of a vessel such, for instance, as a botttle with myimproved cap secured thereto. Fig. 2 is a top plan view of the same.Fig. 3 is a vertical central section through the parts. Fig. e is avertical central section through the inner and outer members andpacking-ring before the members are united by the formation of the upperflange on the inner member.

Figs. 5, 6, and 7 represent the outer member in side View, verticalcentral section, and top plan. Figs. 8, 9, and 10 represent thepacking-ring in side elevation, vertical central section, and top plan.Figs. 11, 12, and 13 representthe inner member in side elevation,vertical central section, and top plan. Fig. H is a vertical centralsection through a cap of slightly-modified form. Fig. 15 is a similarview of another form of cap, and Fig. 16 is a similar View of a fourthform of cap.

The crown of the outer ring memberot' the cap is denoted by] and itscentrally-arranged hole by 2. The crown of the outer member is providedwith a plain depending flange 3, the bottom edge of which is representedof irregular form. The inner member of the cap comprises a disk portione and upper and lower laterally extended circumferential flanges. In thefirst 't'orm shown in the drawings the disk portion 4 of the innermember is provided with an upper flange 5, forming an extension of thedisk portion, and a lower flange 6, spaced a short distance from theupper flange 5. A vertical wall 7 connects the upper and lower flangesof the inner member.

The packing-ring is denoted by 8 and may be made of any well-knownyielding material suitable for the purposes desired.

In the form of cap above referred to the inner member is permanentlysecured to the outer member as follows: The blank from which the innermember is formed is of cup shape, the vertical wall of the cupsubstantially fitting the hole 2 in the outer member. The packing-ring 8is slipped over the vertical wall of the cup until it rests upon thelower flange 6. The cup is then inserted through the hole 2 and the topof the cup is upset, so as to form the flange 5, overlapping the ringmember, and thus clamping the packing-ring between the ring member andthe lower flange 6.

In the form shown in Fig. 14 the crown of the outer ring member isdepressed around the hole 2, so that the disk portion of the innermember will be flush with the top of the crown.

In the form shown in Fig. 15 the blank which forms the inner-ring memberis bent so that the doubled-over portion of the same forms the lowerflange 9 and the single thickness of metal forms the upper flange 10,which is in the same plane with the disk portion 4.

In the form shown in Fig. 16 the crown of the outer ring member isdepressed to receive the upper flange 10, so that the inner disk memberwill not project above the top of the outer ring member.

The inner disk member is made of non-corrosive materialsuch, forinstance, as aluminiumso that it may be readily punctured for gainingaccess to the interior of the vessel. The lower flange of the innermember rests upon the top of the mouth of the vessel, so as to protectthe packing-ring 8 from coming into contact with the contents of thevessel. The outer ring member of the cap is made of some suitablematerial of suflicient strength to securely hold the cap in positionwhen the depending flange 3 is bent inwardly over an exterior shoulderat the mouth of the vessel. In the present instance this ring is made oftin.

'Bythe construction herein set forth I am enabled to provide a caphaving a readilypuncturable portion, which cap at the same time will besecurely held in position over the mouth of the vessel. This would notbe possible if the same material which is used for the portion over themouth of the vessel was the same as the portion which clamps the cap tothe vessel.

What I claim as my invention is- 1. A sealing-cap comprising outer andinner members clamped together, the inner member being readilypuncturable.

2. A sealing-cap comprising an outer member, an inner member and apacking-ring secured together, the inner member being readilypuncturable.

3. A sealing-cap comprising an outer ring member of one material and aninner member of aluminium clamped to the outer ring member.

4. A sealing-cap comprising an outer ring member of tin and an innerdisk member of readily-puncturable material clamped to the outer ringmember.

5. A sealing-cap comprising an outer ring member of tin and an innerdisk member of aluminium clamped to the outer ring member.

6. A sealing-cap comprising an outer member of strong material and aninner member of sufficiently weak material to be readily puncturedclamped to the outer member.

7 A sealing-cap comprising an outer mem- 5 ber, an inner member clampedto the outer member and a packing-ring permanently secured between theouter and inner members.

8. A sealing-cap comprising an outer ring member, a packing-ring and aninner disk member having flanges overlapping the said outer ring memberand packing-ring, for securing the parts in assembled position.

9. A sealing-cap comprising an outer ring member of suitable materialand an-inner disk 6 member of non-corrosive material permanently securedto the outer'ring member.

10. Asealing-cap comprising an outer ring member having a dependingflange for attaching the cap to a vessel, and an inner disk'mem- 5 herpermanently secured to the outer ring member.

11. A sealing-cap comprising an outerring member having a dependingflange for attaching the'cap to a vessel and an inner disk mem- 7 ber ofnon-corrosive material permanently secured to the outer ring member.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of two witnesses, this 5th day of October,

KING (J. GILLETTE. WVitnesses:

FREDK. HAYNES, C. 'S. SUNDGREN.

